Unsatisfied customer

I had started using rain back in 2020 when I was leaving in Evaton, we went for 2 months without electricity which resulted into me moving to a different location in 2021 around August. My rain network did not work when I got to this location I then gave Rain a call trying to figure out a way forward n the person I spoke to on the line said to me that they do see on the system that my account has been inactive for this long but yet it says I owe them R900 n that she is going to consult her supervisor and get back to me wich she never did. Almost 2 years later I start getting final notice messages n calls from the lawyers saying I owe R1000 n something that I need to pay. I REFUSE TO PAY THIS MONEY as Rain failed to be of assistance to me regarding this matter, secondly Rain does not have a contract wereby maybe one signs up for this such a period n is obliged to pay. The fact that it shows on their system that it's been inactive but yet I have to pay buffles me!